Home / 124,872.68-172,328.82-71,165.90

Finding the Fourth Proportional to 124,872.68, 172,328.82 and 71,165.90

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Solution

The fourth proportional to 124,872.68, 172,328.82 and 71,165.90 is: 98,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,872.68 : 172,328.82 = 71,165.90 : x
  2. Step 2: Convert to fraction form
    124,872.68/172,328.82 = 71,165.90/x
  3. Step 3: Cross multiply
    124,872.68x = 172,328.82 × 71,165.90
  4. Step 4: Simplify right side
    124,872.68x = 12,263,935,571.24
  5. Step 5: Solve for x
    x = 12,263,935,571.24/124,872.68
  6. Step 6: Final answer
    x = 98,211.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.